ERROR_ORPHAN_NAME_EXHAUSTED - 799 (0x31F)
Orphaned files exist on the volume but could not be recovered because no more new names could be created in the recovery directory. Files must be moved from the recovery directory.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_ORPHAN_NAME_EXHAUSTED error, with the numeric code 799 or hexadecimal code 0x31F, indicates that orphaned files could not be recovered due to a lack of available new names in the recovery directory. This error is specific to file system operations and pertains to the inability to rename files during the recovery process.
Error Details
This error typically occurs when attempting to recover orphaned files on a volume, but the recovery operation fails because no more unique names can be generated for the recovered files in the designated recovery directory. The term 'orphaned files' refers to files that were not properly deleted or renamed and are now considered lost or unlinked.
Usage Context
This error is relevant primarily during file system operations, particularly those involving orphaned files. It may be encountered when using tools such as chkdsk with the /r option for file recovery, or through other utilities designed to recover deleted files from a volume.
Developer Interpretation
Developers should interpret this error as an indication that the file system operation failed due to insufficient available names in the recovery directory. This can happen if the recovery directory is already filled with too many orphaned files, or if there are naming conflicts preventing new unique names from being generated for recovered files.
Related Errors
ERROR_DIR_NOT_EMPTY(145)ERROR_PATH_NOT_FOUND(3)ERROR_TOO_MANY_SYMBOLIC_LINKS(286)
These errors may provide additional context or be encountered in similar scenarios involving file system operations.
FAQ
Q: What does the ERROR_ORPHAN_NAME_EXHAUSTED error mean?
A: This error indicates that orphaned files could not be recovered due to insufficient available names in the recovery directory.
Q: How can I resolve this issue?
A: Ensure that the recovery directory has sufficient space and unique naming availability. Clear out any unnecessary files or rename existing files to create new unique names for the orphaned files.
Summary
The ERROR_ORPHAN_NAME_EXHAUSTED error is a specific file system error indicating an issue with recovering orphaned files due to insufficient available names in the recovery directory. Developers should ensure that their operations do not exceed naming constraints and provide adequate space for new unique names during recovery processes.